Bookbinder



y Dec. 8, 1925.

c. GoLDsTElN BOOKBINDER Filed May l. 1924 'stiff or limp, "and of anysuitable-material.

iatented Dec. 8, 1925.

Unirse stares CHARLES GOLDSTEN, CF CHICAGO, ILLINOIS.

BOOKBINDER. A i f Application led May 1,

To all wim-m t may concer/lz.'

Be it known that l, CHARLES GoL-Ds'rnrn, a citizen yof the UnitedStatesof America, and a resident of Chicago, county of Cook, and State ofIllinois, have invented a certain "new and useful Improvement in Bookbinders, of which the following is a specification.'

rlhis invention relates to improvements in book binders and moreparticularly to binders in which the contents are separable from thecover, thus permitting the former to be renewed as required.

Among the objects of the invention is to provide a novel constructionfor binders of the general character described and more especiallysuitablefor use in the manuface ture of check books, memorandum or notebooks, and the like, wherein the fillers 'or contents consisting ofbound together sheets, are supplied from time to time as used.

A further object of the invention is to provide a simple and inexpensiveforni of 'mountingr for the filler and cover, which can e be supplied tothe book maker independently of the cover and filler stock, thuspermitting the maker to assemble and put on the market the completebinders and fillers without the use of special assembling equipment.

A preferred embodiment of the invention is illustrated in theaccompanying drawings in `which,

Figure l is a perspective view of the filler showing the application ofthe binding' strip.

Figure 2 is a view in cross section of the filler as taken on line 2-2of Figure 1.

Figure 3 is a plan view of the cover in open position and lying flat.

Figure el, is a cross sectional view through the back section of thecover as taken on line Ll-ll of Figure 3.

Figure 5 is a View in longitudinal section taken on line 5 5 of Figure3, and,

Figure 6, is a. cross sectional View of th ller and cover assembled.

rlhe cover of the binder is made in any of the various forms known inthe binder art, consisting of the oever members l, the back sectienf,the covers being? 'Tb-G back SOQ' 2, is preferably 'stit-'and connectedalenog its sides with the covers 'i- Q gjsections 3, 3. A abstantiallythe ful length the back section, is a channel and width L 1924. SerialNo 710,355.

strip 4, made of a light gauge metal and havingits edges bent over andtoward each other to form marginal channel members et, a openinginwardly and toward each other. The channel strip is manifestly mountedon the inside face of the back section, this being accomplished bypassing rivets 5 through the channel strip and back sections at severalpoints throughout the length. At one end of the channel strip it isprovided with an upstanding` lip or stop member 6, which is bent up fromthe material of the strip and forms a closure for one end of the channelto prevent the endwise movement of the filler in one direction. channelis open and a spring locking' member .7, is provided, the sameconsisting of a narrow strip of metal lying underneath the channel stripand having its inner end anchored by one of the rivets 5. The end of thelocking member projects beyond the end of the channel and is bent toform an upstanding detent 7 adjacent the end of the channel strip and arounded extremity 7b, whereby the pressure of the thumb or finger may beapplied to press the detent below the end opening to the channel strip.The binding` strip 8, which serves as the connecting' member between thefiller and the channel strip 4, is applied along the back edge of thebound sheets 9, the two together forming the completed filler. Inpractice the bound sheets, which may be blank checks or the like, wouldordinarily be bound together by sewing,` or stapling prior to theapplication of the bindingstrip. The strip consists of a strip 10, offabric such as cambric, having its inner surface gummed. Sewed to thefabric strip 10, is a narrow strip 11, of a relatively sti material suchas a libre or press board of a width and thickness approximating; thatof the channel formed by the channel strip 4. As a preferable method. ofsecuring` the strip 11 to the fabric to lines of holes 11a are punchedin the latter, there extending;r lengthwise on either side of thecentral line and throughy these holes are sewed the lines of stitching12, 12. The binding strip 8 is thus a unitary piece which i i, isreadily applied to the back of thebound sheets 9, by moistening thegumined surface and folding its margins over the sides Vwith the striparranged symmetrically along the back. The binding strip thus applied:prev vides a relatively flexibly connectdlmeifnber along the back ofthe filler which' can At the other end the' lil() lith;

be inserted or slid endivise into the channel strip, With its marginsengaging Withint the tl-shaped channels. The spring locking member 7, ispressed downwardly and out oi locking position during the insertion of.the iiller and when in position, the locking member resumes its positionWith the detent 7 preventing` the same from sliding out.

The filler thus inserted is not directly se cured to the cover, butthrough the medium of the channel engaging strip il, which has flexibleconnection with the liller. Thus there is no binding between liller andcover such as Would make the binder less flexible than a permanentlybound book. rlhis is particularly true of a sectionally sewed tiller,since the application ot the binding strip does not eile'ct itsflexibility in the sense that it can be opened flat.

A further advantage has already been mentioned namely, that the. channeland binding strips' are so constructed that they can bey applied tocover and .iil'ler Without expert' labor and special equipment. Thismakes it possible for the book maker to buy the manufactured materialenthe market in large quantities, and cut it to the length required. Thisis especially' true of the binding strips which can be appliedf tofillers oi* most any form and varying thickness, and used with any'forni of' cover provided with channels or grooves to receive the edgeset the stiii strip.

I claim as my invention:

1. A binder comprising separable cover andv iiller therefor, andconnecting members comprising a channel strip applied to the cover and abinder strip consisting of a relatively stiff strip adapted to beinserted in said channel strip and stitched to a piece oi flexiblematerial adapted to be applied,

along the back edge oi said liller.

2. binder comprising separable cover and a filler therefor, andintermediate connecting members comprising laterally open'- ing channelsarlong the back. section of said cover and a binder strip on said fillercoinprising a fabric strip applied along the back of said iiller and astrip of relatively stiff material flexibly connected Withsaid, -fabricstrip by a line of stitches extending length- Wise intermediate its sideedges.

3. A binder comprising a separable cover and liller, a channel alongvthe back section of said cover, al flexible strip applied along the backedge of said ller, a relatively stili" strip `lfiexibly connectedWithsaid exible stripV and means for locking said parts in connectedposition. Y y

Signed at Chicago, this 12th day of April,

CHARLES GOLDSTEIN,

